45x37 37x45简便方法脱式计算?

2025-03-04 22:49:23
推荐回答(2个)
回答1:

=37×(45+45)
=37×90
=37×(100-10)
=3700-370
==3700-300-70
=3400-70
=3330

回答2:

45*37+37*45
45*38